1 I tell my patients to slap an ice pack on the itchy skin because when the nerve is so busy telling you your skin is cold it canât tell you that your skin itches.  I also stress the importance of not scratching! Scratching causes skin nerves to thicken up and send even louder itch messages to your brain in the future.
Blue human eye. A phenotypic trait, or simply trait, is a distinct variant of a phenotypic characteristic of an organism that may be inherited, be environmentally determined or be a combination of the two. For example, eye color is a character or abstraction of an attribute, while blue, brown and hazel are traits.n example of a phenotypic trait is hair color; there are underlying genes that control the hair color, which make up the genotype, but the actual hair color, the part we see, is the phenotype.
Confidence votes 29. In genetics, an attribute which is solely influenced by an individual's environment. Just like there are very few genes which are the only influence to some behavior or another, there are very few solely environmental traits. trait is a physical characteristic that an organism passes on to  its offspring. Trait is the same as characteristics, which are part  of a person's personality. An exampl â¦ e of a trait is kindness or  sincerity. 4 people found this useful.